CN112109275B - Connecting structure of injection molding machine and mold and connecting and using method - Google Patents
Connecting structure of injection molding machine and mold and connecting and using method Download PDFInfo
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- CN112109275B CN112109275B CN202010907526.3A CN202010907526A CN112109275B CN 112109275 B CN112109275 B CN 112109275B CN 202010907526 A CN202010907526 A CN 202010907526A CN 112109275 B CN112109275 B CN 112109275B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1742—Mounting of moulds; Mould supports
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Abstract
The invention discloses a connecting structure and a connecting and using method of an injection molding machine and a mold, wherein the connecting and using method of the injection molding machine and the mold comprises the steps of sequentially connecting an injection molding machine electromagnetic valve, a control line, a plug, a signal line and an electromagnetic valve joint; selecting different circuit control connection modes and oil circuit connection modes according to whether the die is provided with a sequence valve; the self-contained signal of the injection molding machine is directly used without adding a control signal; the pump system of the original injection molding machine is used in the aspect of the power of an oil path, and a hydraulic station is not required to be added externally to serve as an external unit; the control signal and the oil circuit power are both designed to be in an extended form, so that the device is simple to use and convenient to convert. The converted interface is in a quick insertion mode, and oil leakage pollution generated in the process of changing the mold of different mold standards is reduced. The interface in the aspect of the oil circuit is flexible, the fixed die and the movable die can be used, and the space constraint is greatly reduced. Thereby improving the compatibility of the injection molding machine and the mold.
Description
Technical Field
The invention relates to the technical field of injection molding processes, in particular to a connecting structure of an injection molding machine and a mold and a connecting and using method.
Background
In our daily life, plastic products are products which are everywhere seen, and most of the plastic products are produced by an injection molding machine. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. Different mold standards can be provided according to different machine standards when a mold is designed, sequence valve oil paths are provided between different molds, the sequence valves of the injection molding machine are not needed to be used by the sequence valves of the molds, but control signals and oil path power need to be increased additionally, the cost is increased, and therefore the problem of compatibility of the injection molding machine and the mold needs to be solved urgently.
Disclosure of Invention
The invention aims to provide a connecting structure of an injection molding machine and a mold and a connecting and using method, and aims to solve the problem of compatibility of the injection molding machine and the mold.
In order to achieve the above object, in a first aspect, the present invention provides a method for connecting an injection molding machine and a mold, comprising:
connecting an electromagnetic valve of an injection molding machine, a control line, a plug, a signal line and an electromagnetic valve joint in sequence;
selecting different circuit control connection modes and oil circuit connection modes according to whether the die is provided with a sequence valve; the method specifically comprises the following steps:
when the mold is not provided with a sequence valve, the electromagnetic valve joint is connected with the electromagnetic valve of the injection molding machine, and oil circuit power of the injection molding machine is adopted;
when the mold is provided with a sequence valve, the electromagnetic valve joint is connected with the sequence valve of the mold, two ends of the first oil pipe are respectively connected with an oil inlet of the injection molding machine and an oil inlet of the mold, and two ends of the second oil pipe are respectively connected with an oil return port of the injection molding machine and an oil return port of the mold.
In an embodiment, the method further comprises:
and winding the signal wire on a rotating shaft which is rotationally connected with the winding frame.
In one embodiment, when the mold is self-contained with a sequence valve, the method further comprises:
and carrying out fault analysis based on the parallel indicator lamps between the electromagnetic valve of the injection molding machine and the electromagnetic valve joint.
In one embodiment, the fault analysis is performed based on an indicator light connected in parallel between the electromagnetic valve of the injection molding machine and the electromagnetic valve connector, and specifically includes:
if the indicator light is on after electrification and the injection molding machine does not work, the connection faults of the electromagnetic valve of the injection molding machine, the control line, the plug, the signal line and the electromagnetic valve connector are caused;
and if the indicator light is not on after electrification and the injection molding machine does not work, the injection molding machine and the internal circuit of the mold are in fault.
In a second aspect, the invention further provides a connection structure applied to the connection use method of the injection molding machine and the mold according to the first aspect, the connection structure comprises an injection molding machine electromagnetic valve, a control line, a plug, a signal line, an electromagnetic valve joint, a first oil pipe and a second oil pipe, the injection molding machine electromagnetic valve, the control line, the plug, the signal line and the electromagnetic valve joint are sequentially connected, the electromagnetic valve joint is detachably connected with the injection molding machine electromagnetic valve and a mold sequence valve, two ends of the first oil pipe are detachably connected with an injection molding machine oil inlet and a mold oil inlet respectively, and two ends of the second oil pipe are detachably connected with an injection molding machine oil return port and a mold oil return port respectively.
According to the connecting structure of the injection molding machine and the mold and the connecting and using method, the electromagnetic valve of the injection molding machine, the control line, the plug, the signal line and the electromagnetic valve joint are sequentially connected; selecting different circuit control connection modes and oil way connection modes according to whether the die is provided with a sequence valve; the self-contained signal of the injection molding machine is directly used without adding a control signal; the pump system of the original injection molding machine is used in the aspect of the power of an oil path, and a hydraulic station is not required to be added externally to serve as an external unit; the control signal and the oil circuit power are both designed to be in an extended form, so that the device is simple to use and convenient to convert. The converted interface is in a quick insertion mode, and oil leakage pollution generated in the process of changing the mold of different mold standards is reduced. The interface in the aspect of the oil circuit is flexible, the fixed die and the movable die can be used, and the space constraint is greatly reduced. Thereby improving the compatibility of the injection molding machine and the mold.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for connecting an injection molding machine and a mold for use according to an embodiment of the present invention;
FIG. 2 shows a schematic structural view of the components of the injection molding machine;
FIG. 3 shows a schematic diagram of the oil path structure at the die end;
FIG. 4 is a schematic diagram of the connections of the solenoid valve, control line, plug, signal line and solenoid valve connector of the injection molding machine;
FIG. 5 is a diagram showing the connection structure of the solenoid valve and the solenoid valve connector of the injection molding machine;
FIG. 6 is a top view of FIG. 5;
fig. 7 is a sectional view a-a of fig. 6.
In the figure: 1-an electromagnetic valve of an injection molding machine, 2-a control line, 3-a plug, 4-a signal line, 5-an electromagnetic valve joint, 6-a connecting sheet, 7-a sliding piece, 8-a spring, 9-a rubber block, 51-a propping piece, 52-a connecting piece and 53-a contact piece.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for connecting an injection molding machine and a mold according to an embodiment of the present invention, and specifically, the method for connecting the injection molding machine and the mold may include the following steps:
s1, sequentially connecting the injection molding machine electromagnetic valve 1, the control line 2, the plug 3, the signal line 4 and the electromagnetic valve joint 5;
in the embodiment of the present invention, please refer to fig. 2, and fig. 2 shows a schematic structural diagram of each component of the injection molding machine. The injection molding machine has the function of an oil sequence valve, so that higher automatic matching degree can be ensured, and the production stability can be ensured. In the process of improving the matching degree, the original solenoid valve connector 5 can be completely detached, several groups of Harting plugs 3 are prepared according to the number of control signal points of the machine, and in addition, control signal wires 4 with corresponding specifications are prepared. After the electromagnetic valve joint 5 is completely detached, the control wire 2 is sequentially connected to the base of the Harting plug 3, one end of a signal wire 4 prepared to the corresponding specification is connected with the electromagnetic valve joint 5, the other end of the signal wire 4 is connected with the upper cover of the Harting plug 3, and the length of the prepared signal wire 4 can be selected according to actual conditions. Namely, an electromagnetic valve 1 of the injection molding machine, a control line 2, a plug 3, a signal line 4 and an electromagnetic valve joint 5 are connected in sequence. The significance of lengthening the signal line 4 connecting the solenoid valve connector 5 and the upper cover of the Harting plug 3 is that if the sequence valve of the injection molding machine is continuously used, the lengthened solenoid valve connector 5 is connected to the solenoid valve of the sequence valve of the injection molding machine. If the integrated sequence valve of the mould is not needed to use the original sequence valve of the injection molding machine, then the lengthened signal wire 4 and the electromagnetic valve connector 5 are connected with the sequence valve of the mould. Different control requirements can be changed according to different requirements, and the front end of the lengthened signal line 4 can be pasted with a sequence label to prevent errors of sequence functions. The signal line 4 is wound around a rotating shaft rotatably connected to the winding frame. Namely the length of signal line 4 can suitably be long, can adapt to the connection use of the injection molding machine and the mould of different distances, adopts simultaneously the winding stand supports the pivot, signal line 4 twine in the pivot, be convenient for accomodate, avoid the circuit to be mixed and disorderly, take place the incident.
And S2, selecting different circuit control connection modes and oil way connection modes according to whether the mould is provided with a sequence valve.
In the embodiment of the invention, when the mold is not provided with the sequence valve, the electromagnetic valve joint 5 is connected with the electromagnetic valve 1 of the injection molding machine, and the oil way power of the injection molding machine is adopted, so that higher automatic matching degree can be ensured.
When the mold is provided with a sequence valve, the electromagnetic valve joint 5 is connected with the sequence valve of the mold, two ends of the first oil pipe are respectively connected with an oil inlet of the injection molding machine and an oil inlet of the mold, and two ends of the second oil pipe are respectively connected with an oil return port of the injection molding machine and an oil return port of the mold. The connection mode of the circuit and the oil circuit adopts a simple scheme, and the connection mode of the circuit is realized by using a Harting plug 3 for switching. The connection mode of the oil circuit is that the power of the original injection molding machine is used for customizing two oil pipes with proper length, namely a first oil pipe and a second oil pipe, the bearing pressure of the oil pipes is 150bar, the use temperature requirement is 150 ℃, the length is determined according to the required requirement, the customization parameters of the oil pipes can meet various parameters of the connection between the injection molding machine and a mold, the connection has the advantages that the adaptability and the stability of the injection molding machine and molds with different standards are guaranteed, the increase of an external hydraulic station and other complex connection modes is saved, and the production efficiency is greatly improved. Referring to fig. 3, fig. 3 shows a schematic diagram of an oil path structure at the mold end. The oil line joint at the mould end adopts a quick-insertion mode, the principle of reducing cost is followed, when a sequence valve of the mould is used, the power of the oil line is from an injection molding machine, and a hydraulic pump station is not required to be added externally to be used as power. When the injection molding machine leaves a factory, the P port and the T port of the sequence valve on the injection molding machine are sealed by plugs to prevent oil leakage. When power needs to be supplied from a sequence valve on a machine, two oil pipes need to be customized to be used as the connection for oil circuit power. Both ends of the oil pipe can be connected in a quick-inserting mode, so that the use efficiency can be improved, and the oil pipe can be used between two sequence valves and can be quickly selected according to requirements. When the oil pipe is not needed to be used, the oil pipe can be quickly detached and placed in a storage area, and unnecessary abrasion of the oil pipe in the injection molding machine is prevented.
In addition, when the mold is provided with a sequence valve, the method further comprises the following steps:
and carrying out fault analysis based on the parallel indicator lamps between the injection molding machine electromagnetic valve 1 and the electromagnetic valve joint 5. Specifically, if the indicator light is on after power-on and the injection molding machine does not work, the connection of the injection molding machine electromagnetic valve 1, the control line 2, the plug 3, the signal line 4 and the electromagnetic valve joint 5 fails; namely, the circuit connection between the injection molding machine and the mold is a passage, and only the connecting circuits outside the injection molding machine electromagnetic valve 1, the control line 2, the plug 3, the signal line 4 and the electromagnetic valve joint 5 need to be maintained. And if the indicator light is not on after electrification and the injection molding machine does not work, the injection molding machine and the internal circuit of the mold are in fault. Namely, the injection molding machine electromagnetic valve 1, the control line 2, the plug 3, the signal line 4 and the electromagnetic valve joint 5 are connected without failure, and the injection molding machine and the internal circuit of the mold need to be maintained, so that the failure position can be conveniently and rapidly judged, the maintenance can be rapidly carried out, and the production efficiency is improved.
Connecting the electromagnetic valve joint 5 with the injection molding machine electromagnetic valve 1 specifically comprises:
the two contact pieces 53 of the electromagnetic valve joint 5 are inserted into the cavity of the injection molding machine electromagnetic valve 1 from the groove of the injection molding machine electromagnetic valve 1 until the connecting piece 52 fixedly connected with the two contact pieces 53 is positioned in the groove, the abutting piece 51 fixedly connected with the connecting piece 52 is positioned outside the injection molding machine electromagnetic valve 1, and the two contact pieces 53 are respectively and electrically connected with the two connecting pieces 6.
Will the solenoid valve connects 5 with injection molding machine solenoid valve 1 is connected, specifically still includes:
and simultaneously sliding the sliding part 7 fixedly connected with the two connecting pieces 6 to one side of the two contact pieces 53 until the two connecting pieces 6 are respectively and electrically connected with the two contact pieces 53.
For a detailed description of the process, please refer to the contents of the second embodiment, which is not described herein.
In a second aspect, referring to fig. 4 to 7, the present invention further provides a connection structure between an injection molding machine and a mold, including an injection molding machine solenoid valve 1, a control line 2, a plug 3, a signal line 4, a solenoid valve joint 5, a first oil pipe and a second oil pipe, where the injection molding machine solenoid valve 1, the control line 2, the plug 3, the signal line 4 and the solenoid valve joint 5 are sequentially connected, the solenoid valve joint 5 is detachably connected with the injection molding machine solenoid valve 1 and a mold sequence valve, two ends of the first oil pipe are detachably connected with an injection molding machine oil inlet and a mold oil inlet respectively, and two ends of the second oil pipe are detachably connected with an injection molding machine oil return port and a mold oil return port respectively.
In the embodiment, when the mold is not provided with a sequence valve, the electromagnetic valve 1 of the injection molding machine is connected with the electromagnetic valve joint 5, and a circuit control signal and an oil circuit connection of the injection molding machine are used as oil circuit power; when the mold is provided with a sequence valve, the electromagnetic valve joint 5 is connected with the sequence valve of the mold, the two ends of the first oil pipe are detachably connected with an oil inlet of an injection molding machine and an oil inlet of the mold respectively, the two ends of the second oil pipe are detachably connected with an oil return port of the injection molding machine and an oil return port of the mold respectively, the connectable mode adopts an inserting mode to realize the connection of a circuit and an oil circuit, the mold can be connected with the sequence valve or without the sequence valve, the control signal and the oil circuit power do not need to be additionally increased, the cost is reduced, and the compatibility of the injection molding machine and the mold is realized.
Further, the electromagnetic valve joint 5 comprises a supporting piece 51, a connecting piece 52 and two contact pieces 53, the connecting structure of the injection molding machine and the mold further comprises two connecting pieces 6, the supporting piece 51 is located outside the injection molding machine electromagnetic valve 1, the connecting piece 52 and the supporting piece 51 are integrally formed and located in a groove of the injection molding machine electromagnetic valve 1, the two contact pieces 53 are fixedly connected with the connecting piece 52 and located in a cavity of the injection molding machine electromagnetic valve 1 communicated with the groove, and the two connecting pieces 6 are respectively electrically connected with the two contact pieces 53 and located in the cavity of the injection molding machine electromagnetic valve 1.
In this embodiment, the abutting piece 51, the connecting piece 52 and the two contact pieces 53 are sequentially and fixedly connected, the length of the abutting piece 51 is greater than that of the connecting piece 52, the two contact pieces 53 are used for being connected with the two connecting pieces 6 to realize circuit connection, and the injection molding machine solenoid valve 1 is of a cavity structure and is provided with a groove, and the groove is communicated with the cavity. When the electromagnetic valve joint 5 is connected with the injection molding machine electromagnetic valve 1, the two contact pieces 53 are inserted into the injection molding machine electromagnetic valve 1 from the groove and enter the cavity, the connecting piece 52 is positioned in the groove, and the abutting piece 51 abuts against the outside of the injection molding machine, so that the electromagnetic valve joint 5 is stably connected with the injection molding machine electromagnetic valve 1 and is not easy to loosen or shake, and the stable operation of a circuit is ensured.
Further, the connecting structure of the injection molding machine and the mold further comprises two sliders 7, two springs 8, two rubber blocks 9, a rotating shaft and a winding frame, wherein the two sliders 7 are slidably connected with the injection molding machine electromagnetic valve 1 and extend out of the injection molding machine electromagnetic valve 1 and are respectively fixedly connected with the two connecting pieces 6, the two springs 8 are located on two sides of the connecting piece 52, the two rubber blocks 9 are respectively fixedly connected with the two springs 8 and abut against the connecting piece 52, the rotating shaft is rotatably connected with the signal wire 4, and the winding frame is rotatably connected with the rotating shaft.
In this embodiment, the injection molding machine solenoid valve 1 has two chutes, one end of each of the two sliding members 7 is located in the cavity of the injection molding machine solenoid valve 1, and the other end of each of the two sliding members 7 extends from the chute to the outside of the injection molding machine solenoid valve 1, when the two contact pieces 53 are inserted into the cavity of the injection molding machine solenoid valve 1, the two sliding members 7 are not in contact connection with the two connecting pieces 6 at this time, and the circuit is not communicated, so that the two sliding members 7 slide toward one side of the contact piece 53 to move the connecting piece 6 connected with the two sliding members to be connected with the contact piece 53 to realize circuit connection, thereby avoiding the direct insertion of the existing plug 3 and the friction of the metal piece, being easy to wear, and avoiding the occurrence of safety accidents easily when the temperature is high. When the two contact pieces 53 are not inserted into the grooves, the two springs 8 are freely stretched, and the two rubber blocks 9 are contacted; when the two contact pieces 53 are inserted into the grooves and enter the cavity, the two springs 8 are compressed under force and abut against the connecting piece 52, so that the electromagnetic valve connector 5 and the injection molding machine electromagnetic valve 1 are connected more stably and are not easy to fall off, and the circuit connection operation is stable. The winding frame is used for supporting the rotating shaft, the signal wire 4 can be wound on the rotating shaft, and the rotating shaft can extend or shorten the signal wire 4 to realize circuit connection with different distances, so that the winding frame is convenient to use and store.
According to the connecting structure and the connecting and using method of the injection molding machine and the mold, provided by the invention, the self-contained signal of the machine is directly used, and a control signal is not required to be added; the pump system of the original injection molding machine is used in the aspect of the power of an oil path, and a hydraulic station is not required to be added externally to serve as an external unit; the control signal and the oil circuit power are both designed to be in an extension form, and the extension form is simple to use and convenient and fast to convert. The converted interface is in a quick insertion mode, and oil leakage pollution generated in the process of changing the mold of different mold standards is reduced. The interface in the aspect of the oil circuit is flexible, the fixed die and the movable die can be used, and the space constraint is greatly reduced. All design changes are made on existing equipment with minimal changes in cost, i.e., reduced material costs and even more time costs. Prevent the fluid pollution during the retooling, when the oil level of oil tank reduces too fast, the power pump can get into the air, can increase to the loss of each part. Reducing the time and cost of maintenance. The power of the original machine is used in the aspect of power, only one path of oil inlet (P) and one path of oil return (T) are used as power, and the machine is not limited to a specific position. Secondly, if high requirements are placed on the position, the oil inlet (P) and the oil return (T) can be introduced from different positions. Then the pressure (bar-150bar) can be selected according to actual needs, and the power is introduced from an oil circuit with a pressure relief valve. Finally, the actual requirement of the whole is realized. In the aspect of power connectors of control signals and oil paths in design change, a quick-plug mode is used, then a plug 3 with a unified standard (a standard Harting plug 3) is selected, and then a proper plug 3 is selected to reduce the reduction of production efficiency caused by the use of plugs 3 with different specifications. Considering when the mould is changed, each control unit is more, and a lot of interference and abrasion can appear when the mould is opened and closed to the machine, at first when using quick connector, can dismantle when not using and place the custody region, secondly do a location frock, wear appears when preventing to place, reduces unnecessary cost of maintenance. The voltage of the plug 3 is then also the original 24V dc voltage of the machine.
Has the advantages that: compatible structure of high stability: the original form of externally adding a hydraulic station unit is abandoned, so that the production is more accurate. Excellent compatibility effect: the changed control unit only has an electric signal and only increases two paths of oil path power, thereby ensuring good convenient use. Minimizing externally added materials and equipment and thereby reducing costs. Optimized compatibility effects: the hydraulic station units are added outside, so that the use space around the machine can be occupied, the difficulty of subsequent automatic development is increased, and the difficulty of material circulation is increased due to the occupied space around the machine. Compared with the design and transformation scheme of a common machine, the method saves a large amount of materials, and can improve the production efficiency by reducing the die change time, thereby reducing the time cost.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A connecting and using method of an injection molding machine and a mold is characterized by comprising the following steps:
connecting an electromagnetic valve of an injection molding machine, a control line, a plug, a signal line and an electromagnetic valve joint in sequence;
selecting different circuit control connection modes and oil circuit connection modes according to whether the die is provided with a sequence valve; the method specifically comprises the following steps:
when the mold is not provided with a sequence valve, the electromagnetic valve connector is connected with the electromagnetic valve of the injection molding machine, and oil way power of the injection molding machine is adopted;
when the mold is provided with a sequence valve, the electromagnetic valve joint is connected with the sequence valve of the mold, two ends of the first oil pipe are respectively connected with an oil inlet of the injection molding machine and an oil inlet of the mold, and two ends of the second oil pipe are respectively connected with an oil return port of the injection molding machine and an oil return port of the mold.
2. The method of claim 1, further comprising the step of:
and winding the signal wire on a rotating shaft which is rotationally connected with the winding frame.
3. The method of claim 1, wherein when the mold is provided with a sequence valve, the method further comprises:
and carrying out fault analysis based on the parallel indicator lamps between the electromagnetic valve of the injection molding machine and the electromagnetic valve joint.
4. The method for connecting and using the injection molding machine and the mold according to claim 3, wherein fault analysis is performed based on an indicator lamp connected in parallel between the electromagnetic valve of the injection molding machine and the electromagnetic valve joint, and specifically comprises:
if the indicator light is on after electrification and the injection molding machine does not work, the connection faults of the electromagnetic valve of the injection molding machine, the control line, the plug, the signal line and the electromagnetic valve connector are caused;
and if the indicator light is not on after electrification and the injection molding machine does not work, the injection molding machine and the internal circuit of the mold are in fault.
5. A connecting structure applied to a connecting use method of an injection molding machine and a mold according to any one of claims 1 to 4,
including injection molding machine solenoid valve, control line, plug, signal line, solenoid valve joint, first oil pipe and second oil pipe, the injection molding machine solenoid valve the control line the plug the signal line with the solenoid valve joint connects gradually, the solenoid valve connect with injection molding machine solenoid valve and mould sequence valve can dismantle the connection, the both ends of first oil pipe can be dismantled with injection molding machine oil inlet and mould oil inlet respectively and be connected, the both ends of second oil pipe can be dismantled with injection molding machine oil return opening and mould oil return opening respectively and be connected.
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| CN111216315B (en) * | 2019-12-04 | 2021-11-02 | 沈阳金杯延锋汽车内饰系统有限公司 | Automatic selection feeding system of injection molding machine for automotive interior parts and control system thereof |
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| JPH0780904A (en) * | 1993-09-20 | 1995-03-28 | Mitsubishi Heavy Ind Ltd | Control method of mold breaking or clamping speed |
| CN103807229A (en) * | 2012-11-08 | 2014-05-21 | 博世力士乐（常州）有限公司 | Hydraulic driving device and system |
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